SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
lechner-systems.at
SSL/TLS Certificate
SSL/TLS Certificate for lechner-systems.at
Expiring soon- Issued by (CA)
- Let's Encrypt
- Subject
- —
- Valid from
- Oct 16, 2026
- Valid until
- Oct 23, 2026 (3 days remaining)
- Public key
- EC 384-bit
- Serial
- 061B38C7FB3CC4434A8F74AED28E01F3D153
- SHA-256 fingerprint
- C9:6E:54:48:6D:A9:45:26:A8:0D:A3:E5:59:7E:51:A9:06:0B:BF:68:16:91:45:09:FD:8D:EA:C1:9D:3B:2B:C5
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).
We've observed 1 previous certificate for this host. This certificate has been served since Sep 30, 2026.
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DNS changes
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TLS certificate
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